intel_tex_validate.c revision 6e0f9001fe3fb191c2928bd09aa9e9d05ddf4ea9
1#include "main/mtypes.h" 2#include "main/macros.h" 3#include "main/samplerobj.h" 4 5#include "intel_context.h" 6#include "intel_mipmap_tree.h" 7#include "intel_blit.h" 8#include "intel_tex.h" 9#include "intel_tex_layout.h" 10 11#define FILE_DEBUG_FLAG DEBUG_TEXTURE 12 13/** 14 * When validating, we only care about the texture images that could 15 * be seen, so for non-mipmapped modes we want to ignore everything 16 * but BaseLevel. 17 */ 18static void 19intel_update_max_level(struct intel_texture_object *intelObj, 20 struct gl_sampler_object *sampler) 21{ 22 struct gl_texture_object *tObj = &intelObj->base; 23 24 if (sampler->MinFilter == GL_NEAREST || 25 sampler->MinFilter == GL_LINEAR) { 26 intelObj->_MaxLevel = tObj->BaseLevel; 27 } else { 28 intelObj->_MaxLevel = tObj->_MaxLevel; 29 } 30} 31 32/* 33 */ 34GLuint 35intel_finalize_mipmap_tree(struct intel_context *intel, GLuint unit) 36{ 37 struct gl_context *ctx = &intel->ctx; 38 struct gl_texture_object *tObj = intel->ctx.Texture.Unit[unit]._Current; 39 struct intel_texture_object *intelObj = intel_texture_object(tObj); 40 struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit); 41 GLuint face, i; 42 GLuint nr_faces = 0; 43 struct intel_texture_image *firstImage; 44 int width, height, depth; 45 46 /* We know/require this is true by now: 47 */ 48 assert(intelObj->base._Complete); 49 50 /* What levels must the tree include at a minimum? 51 */ 52 intel_update_max_level(intelObj, sampler); 53 firstImage = intel_texture_image(tObj->Image[0][tObj->BaseLevel]); 54 55 /* Fallback case: 56 */ 57 if (firstImage->base.Base.Border) { 58 intel_miptree_release(&intelObj->mt); 59 return false; 60 } 61 62 intel_miptree_get_dimensions_for_image(&firstImage->base.Base, 63 &width, &height, &depth); 64 65 /* Check tree can hold all active levels. Check tree matches 66 * target, imageFormat, etc. 67 * 68 * For pre-gen4, we have to match first_level == tObj->BaseLevel, 69 * because we don't have the control that gen4 does to make min/mag 70 * determination happen at a nonzero (hardware) baselevel. Because 71 * of that, we just always relayout on baselevel change. 72 */ 73 if (intelObj->mt && 74 (intelObj->mt->target != intelObj->base.Target || 75 intelObj->mt->format != firstImage->base.Base.TexFormat || 76 intelObj->mt->first_level != tObj->BaseLevel || 77 intelObj->mt->last_level < intelObj->_MaxLevel || 78 intelObj->mt->width0 != width || 79 intelObj->mt->height0 != height || 80 intelObj->mt->depth0 != depth)) { 81 intel_miptree_release(&intelObj->mt); 82 } 83 84 85 /* May need to create a new tree: 86 */ 87 if (!intelObj->mt) { 88 intelObj->mt = intel_miptree_create(intel, 89 intelObj->base.Target, 90 firstImage->base.Base.TexFormat, 91 tObj->BaseLevel, 92 intelObj->_MaxLevel, 93 width, 94 height, 95 depth, 96 true); 97 if (!intelObj->mt) 98 return false; 99 } 100 101 /* Pull in any images not in the object's tree: 102 */ 103 nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 104 for (face = 0; face < nr_faces; face++) { 105 for (i = tObj->BaseLevel; i <= intelObj->_MaxLevel; i++) { 106 struct intel_texture_image *intelImage = 107 intel_texture_image(intelObj->base.Image[face][i]); 108 /* skip too small size mipmap */ 109 if (intelImage == NULL) 110 break; 111 /* Need to import images in main memory or held in other trees. 112 * If it's a render target, then its data isn't needed to be in 113 * the object tree (otherwise we'd be FBO incomplete), and we need 114 * to keep track of the image's MT as needing to be pulled in still, 115 * or we'll lose the rendering that's done to it. 116 */ 117 if (intelObj->mt != intelImage->mt && 118 !intelImage->used_as_render_target) { 119 intel_miptree_copy_teximage(intel, intelImage, intelObj->mt); 120 } 121 } 122 } 123 124 return true; 125} 126 127/** 128 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT 129 */ 130static void 131intel_tex_map_image_for_swrast(struct intel_context *intel, 132 struct intel_texture_image *intel_image, 133 GLbitfield mode) 134{ 135 int level = intel_image->base.Base.Level; 136 int face = intel_image->base.Base.Face; 137 struct intel_mipmap_tree *mt; 138 unsigned int x, y; 139 140 if (!intel_image || !intel_image->mt) 141 return; 142 143 mt = intel_image->mt; 144 145 if (mt->target == GL_TEXTURE_3D || 146 mt->target == GL_TEXTURE_2D_ARRAY || 147 mt->target == GL_TEXTURE_1D_ARRAY) { 148 int i; 149 150 /* ImageOffsets[] is only used for swrast's fetch_texel_3d, so we can't 151 * share code with the normal path. 152 */ 153 for (i = 0; i < mt->level[level].depth; i++) { 154 intel_miptree_get_image_offset(mt, level, face, i, &x, &y); 155 intel_image->base.ImageOffsets[i] = x + y * mt->region->pitch; 156 } 157 158 DBG("%s \n", __FUNCTION__); 159 160 intel_image->base.Data = intel_region_map(intel, mt->region, mode); 161 } else { 162 assert(mt->level[level].depth == 1); 163 intel_miptree_get_image_offset(mt, level, face, 0, &x, &y); 164 165 DBG("%s: (%d,%d) -> (%d, %d)/%d\n", 166 __FUNCTION__, face, level, x, y, mt->region->pitch * mt->cpp); 167 168 intel_image->base.Data = intel_region_map(intel, mt->region, mode) + 169 (x + y * mt->region->pitch) * mt->cpp; 170 } 171 172 intel_image->base.RowStride = mt->region->pitch; 173} 174 175static void 176intel_tex_unmap_image_for_swrast(struct intel_context *intel, 177 struct intel_texture_image *intel_image) 178{ 179 if (intel_image && intel_image->mt) { 180 intel_region_unmap(intel, intel_image->mt->region); 181 intel_image->base.Data = NULL; 182 } 183} 184 185/** 186 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT 187 */ 188void 189intel_tex_map_images(struct intel_context *intel, 190 struct intel_texture_object *intelObj, 191 GLbitfield mode) 192{ 193 GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 194 int i, face; 195 196 DBG("%s\n", __FUNCTION__); 197 198 for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++) { 199 for (face = 0; face < nr_faces; face++) { 200 struct intel_texture_image *intel_image = 201 intel_texture_image(intelObj->base.Image[face][i]); 202 203 intel_tex_map_image_for_swrast(intel, intel_image, mode); 204 } 205 } 206} 207 208void 209intel_tex_unmap_images(struct intel_context *intel, 210 struct intel_texture_object *intelObj) 211{ 212 GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 213 int i, face; 214 215 for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++) { 216 for (face = 0; face < nr_faces; face++) { 217 struct intel_texture_image *intel_image = 218 intel_texture_image(intelObj->base.Image[face][i]); 219 220 intel_tex_unmap_image_for_swrast(intel, intel_image); 221 } 222 } 223} 224